| Global warming is the increase in the
| |
| | conclusions, and a few individual
|
| average temperature of the Earth's
| |
| | scientists also disagree with parts of
|
| near-surface air and oceans in recent
| |
| | them.
|
| decades and its projected continuation.
| |
| | An increase in global temperatures can in
|
| Global average air temperature near the
| |
| | turn cause other changes, including sea
|
| Earth's surface rose 0.74 ± 0.18 °C
| |
| | level rise, and changes in the amount and
|
| during the past century. The
| |
| | pattern of precipitation resulting in
|
| Intergovernmental Panel on Climate Change
| |
| | floods and drought. There may also be
|
| (IPCC) concludes, "most of the observed
| |
| | changes in the frequency and intensity of
|
| increase in globally averaged
| |
| | extreme weather events, though it is
|
| temperatures since the mid-20th century
| |
| | difficult to connect specific events to
|
| is very likely due to the observed
| |
| | global warming. Other effects may include
|
| increase in anthropogenic greenhouse gas
| |
| | changes in agricultural yields, glacier
|
| concentrations," which leads to warming
| |
| | retreat, reduced summer streamflows,
|
| of the surface and lower atmosphere by
| |
| | species extinctions and increases in the
|
| increasing the greenhouse effect. Natural
| |
| | ranges of disease vectors.
|
| phenomena such as solar variation
| |
| | The term "global warming" is a specific
|
| combined with volcanoes have probably had
| |
| | example of the broader term climate
|
| a small warming effect from
| |
| | change, which can also refer to global
|
| pre-industrial times to 1950, but a small
| |
| | cooling. In common usage the term refers
|
| cooling effect since 1950.
| |
| | to recent warming and implies a human
|
| These basic conclusions have been
| |
| | influence. The United Nations Framework
|
| endorsed by at least 30 scientific
| |
| | Convention on Climate Change (UNFCCC)
|
| societies and academies of science,
| |
| | uses the term "climate change" for
|
| including all of the national academies
| |
| | human-caused change, and "climate
|
| of science of the major industrialized
| |
| | variability" for other changes. The term
|
| countries. The American Association of
| |
| | "anthropogenic climate change" is
|
| Petroleum Geologists is the only
| |
| | sometimes used when focusing on
|
| scientific society that rejects these
| |
| | human-induced changes.
|
